*{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
    display: block;
    color: black;
    font-size: 13px;
}
.nav ul{
    list-style: none;
    overflow: hidden;
}
li{
    float: left;
    line-height: 50px;
    width: 70px;
    text-align: center;
}
.nav-tail ul{
    list-style: none;
}

.nav-tail{
    position: absolute;
    right: 0;
    top: 0; 
}

.user-info{
    line-height: 30px;
}
.last-info{
    text-align: center;
    position: relative;
}
.second-info{
    width: 100px;
    text-align: center;
    position: relative;
    margin-left: -9px;
}
.second-ul li{
    margin-right: 33px;
}

.user-img{
    position: absolute;
    top: 0;
    right: 50px;
}
.user{
    position: absolute;
    right: 20px;
}
.impotant{
    color: red;
    margin-right:5px;
}
.user-info{
    width: 80px; 
     height: 160px;
    border:none;
    border-radius: 10px;
    position: absolute;
    top: 50px;
    right: 10px;
    box-shadow: 0px 0px 8px 0px #AfAAB5 inset;
    display: none;
}
.last-info:hover .user-info{
    display: block;
}
a:hover{
    color: #4171f2;
}
.content{
    margin-top: 50px;
    height: 230px;
}
.logo{
    margin-top: 50px;
    height: 100px;
    
}
.logo img{
    position: absolute;
    left:50%;
    margin-left: -162.5px;
    
}
.search-box{
    height:42px;
    margin-top: 20px;
    position:relative;
}
input{
    box-sizing: border-box;
    width:550px;
    outline: none;
    padding-left:20px;
    height: 42px;
    font-size: 14px;
    border: 1.5px solid #AfAAB5;
    border-radius: 10px 0 0 10px;
    background: white ;
    display: block;
    left: 50%;
    margin-left: -328px;
    position: absolute;

}
input:focus{
    border: 1.5px solid #4E6EF2;
}
button{
    font-size: 18px;
    color: white;
    text-align: center;
    line-height: 40px;
    border:none;
    cursor: pointer;
    width:106px;
    height:42px;
    display: block;
    z-index: 100;
    left: 50%;
    margin-left: 221px;
    /* top:50%; */
    position: absolute;
    /* right:5px; */
    padding-bottom: 20px;
    background-color: #4662D9;
    /* margin-top: -5px; */
    /* right: 355px; */
    border-radius: 0 10px 10px 0;
}
input:focus div{width:300px;}
.search-box img{
    /* display: block; */
    /* float: left; */
    position: absolute;
    left: 50%;
    margin-left: 174px;
    top: 8px;
    /* top: 117px;
    right: 469px; */
}